SPIRES keywords are not words

The keywords in the HEP and DESY BOOKS databases are often not single words, but a sequence of words. A sequence of words is indexed just as this sequence and can only be searched as this sequence.

Titles, on the other hand, are split into single words and indexed as single words and can only be searched by single words. However, an automatism in SPIRES allows to search for a sequence of words in titles by hiddenly inserting a boolean AND between the words in sequence, e.g.
find title accelerator control system is passed to search as
find title accelerator and control and system ( and therefore their order is irrelevant (commutative) ).

The keywords in HEP are often given in pairs, separated by ", ",
e.g. accelerator, control system . Such a combination of keywords causes 3 entries to the keyword index :
1 . the whole string accelerator, control system
2 . the part before ", " accelerator
3 . the part after ", " control system
and can be searched for in these 3 ways.
Note : The keyword index in HEP has been redesigned in July 2004 and the former index (described on this page) is now named DESY-KEYWORD, alias DK, HEP-TOPIC, TOPIC, TP.
Therefore, in the table below, keyword should be replaced by desy-keyword for HEP.

The keywords in BOOKS are additionally passed to the index WORD, with the mechanism of title indexing, and can be found word by word viafind word ...

Example :
Assume a book / article has the title Methods of accelerator control,
the keyword accelerator, control system in HEP,
the keyword accelerator control system in BOOKS.

Query HEP BOOKS

find keyword accelerator control system no yes

find keyword accelerator, control system yes no

find keyword accelerator yes no

find keyword control system yes no

find keyword control no no

find keyword system no no

find keyword control and system no no

find keyword accelerator# yes yes

find keyword control# yes no

find keyword accelerator system control no no

find title accelerator control methods yes yes

find title control method no no

find title control method# yes yes

find title methods accelerator yes yes

find title methods and accelerator yes yes

find word accelerator system control --- yes

find word control methods --- yes

find word control method --- no

find word accelerat# method# --- yes

Back to the DESY-Library Homepage.

DESY Library, Hartmut Preissner, Aug. 04

Query	HEP	BOOKS
`find keyword accelerator control system`	no	yes
`find keyword accelerator, control system`	yes	no
`find keyword accelerator`	yes	no
`find keyword control system`	yes	no
`find keyword control`	no	no
`find keyword system`	no	no
`find keyword control and system`	no	no
`find keyword accelerator#`	yes	yes
`find keyword control#`	yes	no
`find keyword accelerator system control`	no	no
`find title accelerator control methods`	yes	yes
`find title control method`	no	no
`find title control method#`	yes	yes
`find title methods accelerator`	yes	yes
`find title methods and accelerator`	yes	yes
`find word accelerator system control`	---	yes
`find word control methods`	---	yes
`find word control method`	---	no
`find word accelerat# method#`	---	yes